Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1990-07-23
1991-12-31
Ford, John
Heat exchange
Movable heating or cooling surface
Rotary drum
236 493, 236 1B, 165 16, F25B 2900, F24F 700, F24F 3044
Patent
active
050763466
ABSTRACT:
A duct type of air conditioner wherein temperature in a plurality rooms are controlled independently, and which after having controlled opening and closing of dampers for the rooms, is capable of controlling air volume, controlling the opening and closing of each damper depending on the temperature in the room with the corresponding damper, or determining atuomatically whether to select heating and cooling, depending on each room temperature and an external air, thereby realizing an optimum and effective operation control. When the total opening degree of the dampers becomes less than a predetermined amount the opening degree of the damper feeding air to the room with the greatest heat load is revised to be open.
REFERENCES:
patent: 3297250 (1967-01-01), Capps
patent: 3826963 (1974-07-01), Lorenz
patent: 4530395 (1985-07-01), Parker et al.
patent: 4635445 (1987-01-01), Otsuka et al.
patent: 4646964 (1987-03-01), Parker et al.
patent: 4716957 (1988-01-01), Thompson et al.
patent: 4754919 (1988-07-01), Otsuka et al.
patent: 4830095 (1989-05-01), Friend
patent: 4890666 (1990-01-01), Clark
Ford John
Mitsubishi Denki & Kabushiki Kaisha
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